LayoutTests/inspector/debugger/setPauseOnMicrotasks.html

<!DOCTYPE html>
<html>
<head>
<script src="../../http/tests/inspector/resources/inspector-test.js"></script>
<script src="resources/breakpoint-options-utilities.js"></script>
<script>
function triggerMicrotask() {
    queueMicrotask(() => {
        TestPage.dispatchEventToFrontend("TestPage-microtask");
    });
}

function test()
{
    let suite = InspectorTest.createAsyncSuite("Debugger.setPauseOnMicrotasks");

    const tests = [
        {
            name: "queueMicrotask",
            expression: `queueMicrotask(() => {})`,
        },
        {
            name: "Promise.resolve",
            expression: `Promise.resolve().then(() => {})`,
        },
        {
            name: "Promise.reject",
            expression: `Promise.reject().catch(() => {})`,
        },
    ];

    for (let {name, expression} of tests) {
        suite.addTestCase({
            name: "Debugger.setPauseOnMicrotasks.Disabled." + name,
            description: "Do not pause on microtasks when disabled.",
            test(resolve, reject) {
                WI.debuggerManager.createAllMicrotasksBreakpoint({disabled: true});
                InspectorTest.assert(WI.debuggerManager.allMicrotasksBreakpoint, "Should have created all microtasks breakpoint.");
                InspectorTest.assert(WI.debuggerManager.allMicrotasksBreakpoint.disabled, "All microtasks breakpoint should be disabled.");

                let didPause = false;
                let listener = WI.debuggerManager.singleFireEventListener(WI.DebuggerManager.Event.Paused, (event) => {
                    WI.debuggerManager.resume();
                    didPause = true;
                });

                InspectorTest.evaluateInPage(expression, () => {
                    InspectorTest.expectThat(!didPause, "Should not have paused.");
                    if (!didPause)
                        WI.debuggerManager.removeEventListener(WI.DebuggerManager.Event.Paused, listener);

                    WI.debuggerManager.allMicrotasksBreakpoint.remove();
                    InspectorTest.assert(!WI.debuggerManager.allMicrotasksBreakpoint, "Should have destroyed all microtasks breakpoint.");
                    resolve();
                });
            }
        });

        suite.addTestCase({
            name: "Debugger.setPauseOnMicrotasks.Enabled." + name,
            description: "Do not pause on microtasks when disabled.",
            test(resolve, reject) {
                WI.debuggerManager.createAllMicrotasksBreakpoint();
                InspectorTest.assert(WI.debuggerManager.allMicrotasksBreakpoint, "Should have created all microtasks breakpoint.");
                InspectorTest.assert(!WI.debuggerManager.allMicrotasksBreakpoint.disabled, "All microtasks breakpoint should be enabled.");

                let didPause = false;
                let listener = WI.debuggerManager.singleFireEventListener(WI.DebuggerManager.Event.Paused, (event) => {
                    WI.debuggerManager.resume();
                    didPause = true;
                });

                InspectorTest.evaluateInPage(expression, () => {
                    InspectorTest.expectThat(didPause, "Should have paused.");
                    if (!didPause)
                        WI.debuggerManager.removeEventListener(WI.DebuggerManager.Event.Paused, listener);

                    WI.debuggerManager.allMicrotasksBreakpoint.remove();
                    InspectorTest.assert(!WI.debuggerManager.allMicrotasksBreakpoint, "Should have destroyed all microtasks breakpoint.");
                    resolve();
                });
            }
        });
    }

    InspectorTest.BreakpointOptions.addTestCases(suite, {
        createBreakpoint() {
            WI.debuggerManager.createAllMicrotasksBreakpoint();
            return WI.debuggerManager.allMicrotasksBreakpoint;
        },
        triggerBreakpoint() {
            return Promise.all([
                InspectorTest.awaitEvent("TestPage-microtask"),
                InspectorTest.evaluateInPage(`triggerMicrotask()`),
            ]);
        },
    });

    suite.runTestCasesAndFinish();
}
</script>
</head>
<body onload="runTest()">
<p>Tests for Debugger.setPauseOnMicrotasks command.</p>
</body>
</html>